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参数资料
| 型号： | TDA7419TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
| 封装： | SO-28 |
| 文件页数： | 11/40页 |
| 文件大小： | 698K |
| 代理商： | TDA7419TR |
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TDA7419
Description of the audio processor
Figure 7.
Soft-mute timing
1.
Please notice that a started mute-action is always terminated and could not be interrupted by a change of
the mute -signal
4.5.1
Soft-step volume
When the volume level is changed audible clicks could appear at the output. The root cause
of those clicks
could either be a DC-Offset before the volume-stage or the sudden change of the envelope
of the audiosignal. With the soft-step feature both kinds of clicks could be reduced to a
minimum and are no more audible. The blend-time from one step to the next is
programmable in four steps.
Figure 8.
Soft-step timing
1.
For steps more than 0.5dB the Soft-step mode should be deactivated because it could generate a hard
1dB step during the blend-time.
4.6
Bass
There are four parameters programmable in the bass stage:
1
EXT.
MUTE
+SIGNAL
REF
-SIGNAL
1
I
2C BUS
OUT
Time
D97AU634
1dB
0.5dB
-0.5dB
-1dB
Time
D00AU1170
VOUT
SS Time
相关PDF资料 |
PDF描述 |
|---|---|
| TDA7419 | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
| TDA7420 | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| TDA7421N | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
| TDA7421 | AUDIO SINGLE CHIP RECEIVER, PQFP64 |
| TDA7427AAD1 | PLL FREQUENCY SYNTHESIZER, 200 MHz, PDSO28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA7420 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:MULTIFUNCTIONAUDIO PROCESSOR |
| TDA7421 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:AM/FM TUNER FOR CAR RADIO AND Hi-Fi APPLICATIONS |
| TDA7421N | 制造商:ST 功能描述:AM/FM TUNER FOR CAR RADIO AND HI-FI APPLICATIONS |
| TDA7427 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
| TDA7427A | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
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